How much actuation force in a Membrane keyboard?

[Jebonia]

I am doing a science experiment and i have chosen to run an experiment one comparing keyboard types and see if it affects typing speed. I need to include the science in it and i need to know actuation forces needed. I can find how much on the mechanical but not he membrane

[KaareKanin]

It probably varies... But it's a science experiment, I would say "go measure it yourself". ;)

[Jebonia]

It probably varies... But it's a science experiment, I would say "go measure it yourself". ;)

How am i supposed to measure it? it's not like i can put 50g+ wegihts on such a small place

[ixi_your_face]

Try getting little weights and having them be your controlled system of measure, a 5g, 10g so on so forth. and once it presses, you know you've got your rough weight. You'd want to try and less around with smaller weights + heavier ones 

[KaareKanin]

You could get some sort of coil spring device, do a little maths on the spring constant (or whatever its called in english), use it as a rudimentary load cell and push down the keys with it  ;)

[Austin Powers]

Heard on some article after googling, someone said its 65g~80g. http://pantheones.com.au/news/editorial/keyboards-mechanical-vs-rubber-dome/

And http://www.overclock.net/t/1296759/actuation-force-comparison someone said its 65g.

[Daayzy]

Heard on some article after googling, someone said its 65g~80g. http://pantheones.com.au/news/editorial/keyboards-mechanical-vs-rubber-dome/

And http://www.overclock.net/t/1296759/actuation-force-comparison someone said its 65g.

Second this. I read somewhere it was between 65 and 75. I tried to find the source but I couldn't find it but I definitely remember reading it.